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Flinn Lab Activities and Demonstrations
1-800-452-1261
flinnsci.com
Oxidation and Reduction—Demonstration Kits,
continued
The Copper Test Tube—
Chemical Demonstration Kit
By: Jim and Julie Ealy, Retired
The Peddie School, Hightstown, NJ
Take a test tube which “appears” to be absolutely clear, add a few drops of different chemical solutions, swirl the test tube around and place it in hot water. Before your students’ very eyes, they will see a beautiful film of copper develop and deposit on the test tube glass. Demonstration Notes included.
Concepts: Oxidation–reduction.
Time Required: 20 minutes
Chemicals Provided: Tin(II) chloride solution, silver nitrate solution, Fehling’s solutions A and B, and glyoxal solution.
Note: Perform this demonstration in a fume hood or well-ventilated lab.
The Gold Rush—Turning Pennies into Silver and Gold—
Chemical Demonstration Kit
By: David A. Katz,
Retired, Wilmington, DE
Demonstrate to your students what the alchemists only dreamed about. Turn an ordinary copper penny into silver and then into gold. Students will watch as you place pennies into a chemical solution which turns the pennies silver. Then, over heat, the silver penny will change into “gold.” Demonstration Notes included.
Concepts: Oxidation–reduction, alloys.
Time Required: 15 minutes
Chemicals Provided: Zinc, zinc chloride solution, sodium chloride, vinegar.
Note: Shiny pennies are needed, but not provided.
The Silver Mirror Award—
Chemical Demonstration Kit
By: The Flinn Staff
Reward student achievement or creativity with the “silver mirror award,” a beautiful silver-mirrored flask that you create in the lab. Simply combine four solutions in the Florence flask provided with the kit, swirl, and voilá—a thin, reflective silver coating “plates out” on the inside of the flask. Dextrose, a reducing sugar, reacts with silver ions in solution to produce silver metal. The redox reaction “mirrors” the way silver mirrors are actually produced! Kit includes one 250-mL Florence flask and enough chemicals to prepare five silver-coated items. Use your imagination and surplus lab glassware to create additional awards, ornaments, or vases for your chemistry laboratory.
Concepts: Oxidation–reduction, reducing sugars.
Time Required: 20 minutes
Materials Provided: Florence flask with stopper, acetone, ammo- nium nitrate solution, dextrose solution, silver nitrate solution, sodium hydroxide solution.
See free video at flinnsci.com.
The Copper Test Tube—Chemical Demonstration Kit AP2091
Catalog No.
Description
Price/Each
AP2091
The Copper Test Tube— Chemical Demonstration Kit
$36.85
Catalog No.
Description
Price/Each
AP8895
The Gold Rush—Turning Pennies into Silver and Gold—Chemical Demonstration Kit
$26.95
The Gold Rush—Turning Pennies into Silver and Gold— Chemical Demonstration Kit
AP8895
The Silver Mirror Award— Chemical Demonstration Kit AP6893
Catalog No.
Description
Price/Each
AP6893
The Silver Mirror Award— Chemical Demonstration Kit
$48.85
GP3085
Flask, Florence, 250-mL
10.40
OXIDATION AND REDUCTION—DEMONSTRATION KITS continued on next page.